The Moon in early May: Ф = 13%, 20%, and 28%.

Observations of the waxing Moon in early May 2022: May 4, 2022: +13% at 20:15. ISO 800, 1/160, stack of 250 frames May 5, 2022: +20% at 20:20. ISO 500, 1/80, stack of 450 frames May 6, 2022: +28% at 20:25. ISO 500, 1/125, stack of 350 frames